Its worth considering that jamming (stopping movement) has diminishing returns and is really not a way to go. It is far more effective and useful to "change" and keep movement going. A bounce-or the way I would bounce people- is all about redirecting force, not hitting power to power. At no time do I ever consider power-to-power acceptable. Even when for all intent and purpose it looks to an outsider like a crashing of forces it is not at all what is happening, even with straight jabs-to-jabs and stick-to-stick. The displacement goes all but unseen, it leaves them wondering why they can't get in, but conversely can't avoid you coming in, and they just keep getting hit and controlled.

I like nothing better than for an attacker to think he has what he wants...till it's taken away. Misdirection, either by adding or taking away is far more effective martially. It's all about change not stopping or jamming. The only real difference I see is what MAers do -or should I say HAVE to do in order to make change. For many its all about big body changes and telegraphed movements that are easily read and responded to.

There are far superior ways to move that become extremely ghosty then...wham! And you didn't feel where it came from, didn't "read" any perceived movement- as there is no wind up- and your every move is under someone else's control! Aiki works in Aikido, Daito ryu, judo, MMA, and any kind of weapon use and at full speed.
Cheers
Dan